4055368821 has 48 divisors (see below), whose sum is σ = 6441025536. Its totient is φ = 2261970144.

The previous prime is 4055368813. The next prime is 4055368859. The reversal of 4055368821 is 1288635504.

It is not a de Polignac number, because 4055368821 - 2³ = 4055368813 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4055367821) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4193280 + ... + 4194246.

It is an arithmetic number, because the mean of its divisors is an integer number (134188032).

Almost surely, 2^4055368821 is an apocalyptic number.

It is an amenable number.

4055368821 is a deficient number, since it is larger than the sum of its proper divisors (2385656715).

4055368821 is a wasteful number, since it uses less digits than its factorization.

4055368821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638 (or 1631 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 4055368821 is about 63681.7777782624. Note that the first 5 decimals coincide. The cubic root of 4055368821 is about 1594.6918913644.

The spelling of 4055368821 in words is "four billion, fifty-five million, three hundred sixty-eight thousand, eight hundred twenty-one".